var chartDom = null;
window.mychart = null;
window.echart_createDom = function (w, h) {
  w = Number(w);
  h = Number(h);
  chartDom = document.createElement('div');
  chartDom.style.width = w + 'px';
  chartDom.style.height = h + 'px';
  chartDom.style.display = 'block';
  document.body.appendChild(chartDom);
  document.all.addEventListener('touchmove', function (evt) {
    evt.preventDefault();
  });

  return chartDom;
};
window.echart_createChart = function (opts) {
  if (!opts) {
    opts = {};
  }
  window.mychart = echarts.init(chartDom, undefined, opts);
  return window.mychart;
};

window.echart_setOption = function (opts, ops) {
  window.mychart.setOption(opts, ops);
};
